Glutamine synthetase gene evolution: A good molecular clock
522-526, January 1991. Evolution. Glutamine synthetase gene evolution: A good molecular clock. (phylogenetic trees/Markov process/organelle enzymes).
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Sample chapter Molecular clocks - Springer
points from the vertebrate fossil record for molecular clock esti- mates. Bioessays, 27 .... evolutionary timescales to be estimated from genetic data, provided that the .... Molecular clocks are typically used in phylogenetic ana- lyses, which aim to ...
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molecular clocks and dating - molecularevolution.org
Feb 3, 2011 ... most molecular phylogenies are unrooted (or rooting is determined by prior information) have branch lengths indicating genetic change.
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As time goes by: A simple fool's guide to molecular clock
as a driving force of molecular evolution and suggested evolutionarily “neutral” ... population genetic and phylogenetic (i.e., molecular clock) approaches.
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Integrating phylogeny, molecular clocks, and the fossil record in the
the evolution of coralline algae (Corallinales and ... fossil record, molecular phylogeny (based on the 18S rDNA gene sequences of 39 coralline species), and.
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Molecular Phylogeny - CSUS
Molecular evolution is the study of changes in genes ... Molecular phylogeny uses trees to depict evolutionary .... Molecular clock hypothesis: implications.
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Molecular Clock and Gene Function - Springer
Molecular phylogenies based on the molecular clock require the comparison of ... Orthologous and paralogous genes usually have very different evolutionary ...
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Exploring the temporal structure of heterochronous sequences using
identify sequences whose genetic divergence and sampling date are ... Key words: phylogeny; molecular clock; evolutionary rate; regression; model selection . 1.
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Genomic clocks and evolutionary timescales - Blair Hedges
For decades, molecular clocks have helped to illuminate the evolutionary timescale of ... substitution rate between LINEAGES in a phylogeny [4 – 9]. If the rate with which a particular gene or protein evolves is not the same in all lineages , then ...
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Estimating Divergence Times from Molecular Data on Phylogenetic
processes at the phylogenetic and population genetic scales. On the ... Despite the impact of molecular clocks on evolutionary biology, there are a number of ...
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Molecular Markers in Phylogenetic Studies – A - e-Science Central
Aug 29, 2014 ... marker; Molecular clock; Bar code of Life. Introduction ... gene. In molecular phylogeny, the relationships among organisms or genes are ... divergence as a result of molecular evolution during the course of time. In brief, while ...
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A Method for Calibrating Molecular Clocks and Its Application to
compelling evidence that the average rate of mtDNA evolution is elevated with respect to that ... nuclear genes, since the mitochondrial genome seems ... A statistical model for molecular-clock calibration: Sup- pose that sequence data ( amino acid or nucleotide) are available for r taxa for which a phylogenetic tree, based on.
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Dating the molecular clock in fungi - how close are we? - J. Taylor Lab
Keywords: Evolution. Fossil calibration. Fungi. Molecular clock. Phylogeny ... the reasonable assumption that sampling many genes would average out ...
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Molecules and the fossil record - Blair Hedges
gene sequences can reveal what fossils cannot. BLAIR HEDGES. The fossil ... perspective on evolutionary history beyond what the fossil record can provide. ... Molecular clocks and phylogenies are not without their limitations. First, there are ...
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Evolution of genes and taxa: a primer - Evolutionary Biology
molecular clocks, and providing a foundation for molecular population genetics. .... B. A gene phylogeny of the paralogous and orthologous sequences in the ...
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Phylogeny and Divergence Times in Pinaceae: Evidence from Three
*Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of ... clear gene 4CL, gene duplication and deletion, molecular clock.
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Molecular Phylogeny and Divergence Times of - Personal.psu.edu
Institute of Molecular Evolutionary Genetics and Department of Biology, The ... clock, divergence times, Drosophila, Scaptodrosophila, Scaptomyza,. Zaprionus.
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Molecular clock-like evolution of human immunodeficiency virus type 1
The molecular clock hypothesis states that the rate of nucleotide substitution per ... According to the neutral theory of evolution, for any given gene (or protein), .... We found that the overall phylogeny and mutation model fit the data poorly in the ...
[ 1-s2.0-S0042682204005537-main.pdf?_tid=1671c69a-289a-11e4-9a61-00000aab0f01&acdnat=1408560479_28487747c0e1ff019109f29d84f06e2c - Read/Download File
Local molecular clocks in three nuclear genes - Somos Bacterias y
Keywords: Local molecular clock — maximum likelihood — divergence times — phylogeny — fossil record — evolutionary rates — nuclear genes — mammals ...
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How to Build a Phylogenetic Tree (229 kb)
Genetic distance is the number of mutation/evolutionary events between ... This algorithm does not make the assumption of molecular clock and adjust for the ...
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